reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame^] | 8 | #include "gm/gm.h" |
| 9 | #include "include/core/SkCanvas.h" |
| 10 | #include "include/core/SkPath.h" |
| 11 | #include "include/core/SkTypeface.h" |
| 12 | #include "include/effects/SkGradientShader.h" |
| 13 | #include "tools/ToolUtils.h" |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 14 | |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 15 | static sk_sp<SkShader> make_heatGradient(const SkPoint pts[2]) { |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 16 | const SkColor bw[] = { SK_ColorBLACK, SK_ColorWHITE }; |
| 17 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 18 | return SkGradientShader::MakeLinear(pts, bw, nullptr, SK_ARRAY_COUNT(bw), SkTileMode::kClamp); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 19 | } |
| 20 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 21 | /** |
| 22 | Test a set of clipping problems discovered while writing blitAntiRect, |
| 23 | and test all the code paths through the clipping blitters. |
| 24 | Each region should show as a blue center surrounded by a 2px green |
| 25 | border, with no red. |
| 26 | */ |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 27 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 28 | #define HEIGHT 480 |
| 29 | |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 30 | class GammaTextGM : public skiagm::GM { |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 31 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 32 | SkString onShortName() override { |
Mike Klein | bea1f94 | 2019-03-08 11:11:55 -0600 | [diff] [blame] | 33 | return SkString("gammatext"); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 34 | } |
| 35 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 36 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 37 | return SkISize::Make(1024, HEIGHT); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 38 | } |
| 39 | |
| 40 | static void drawGrad(SkCanvas* canvas) { |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 41 | const SkPoint pts[] = { { 0, 0 }, { 0, SkIntToScalar(HEIGHT) } }; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 42 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 43 | canvas->clear(SK_ColorRED); |
| 44 | SkPaint paint; |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 45 | paint.setShader(make_heatGradient(pts)); |
vandebo@chromium.org | c39c867 | 2012-04-17 21:46:18 +0000 | [diff] [blame] | 46 | SkRect r = { 0, 0, SkIntToScalar(1024), SkIntToScalar(HEIGHT) }; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 47 | canvas->drawRect(r, paint); |
| 48 | } |
| 49 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 50 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 51 | drawGrad(canvas); |
| 52 | |
| 53 | const SkColor fg[] = { |
| 54 | 0xFFFFFFFF, |
| 55 | 0xFFFFFF00, 0xFFFF00FF, 0xFF00FFFF, |
| 56 | 0xFFFF0000, 0xFF00FF00, 0xFF0000FF, |
| 57 | 0xFF000000, |
| 58 | }; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 59 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 60 | const char* text = "Hamburgefons"; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 61 | |
| 62 | SkPaint paint; |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 63 | SkFont font(nullptr, 16); |
| 64 | font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 65 | |
vandebo@chromium.org | c39c867 | 2012-04-17 21:46:18 +0000 | [diff] [blame] | 66 | SkScalar x = SkIntToScalar(10); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 67 | for (size_t i = 0; i < SK_ARRAY_COUNT(fg); ++i) { |
| 68 | paint.setColor(fg[i]); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 69 | |
vandebo@chromium.org | c39c867 | 2012-04-17 21:46:18 +0000 | [diff] [blame] | 70 | SkScalar y = SkIntToScalar(40); |
| 71 | SkScalar stopy = SkIntToScalar(HEIGHT); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 72 | while (y < stopy) { |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 73 | canvas->drawString(text, x, y, font, paint); |
| 74 | y += font.getSize() * 2; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 75 | } |
| 76 | x += SkIntToScalar(1024) / SK_ARRAY_COUNT(fg); |
| 77 | } |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | private: |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 81 | typedef skiagm::GM INHERITED; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 82 | }; |
| 83 | |
bungeman | 67b21a7 | 2015-02-19 07:45:14 -0800 | [diff] [blame] | 84 | DEF_GM( return new GammaTextGM; ) |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 85 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 86 | ////////////////////////////////////////////////////////////////////////////// |
| 87 | |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 88 | static sk_sp<SkShader> make_gradient(SkColor c) { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 89 | const SkPoint pts[] = { { 0, 0 }, { 240, 0 } }; |
| 90 | SkColor colors[2]; |
| 91 | colors[0] = c; |
| 92 | colors[1] = SkColorSetA(c, 0); |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 93 | return SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkTileMode::kClamp); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 94 | } |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 95 | |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 96 | static void draw_pair(SkCanvas* canvas, const SkFont& font, SkColor color, |
| 97 | const sk_sp<SkShader>& shader) { |
| 98 | static const char text[] = "Now is the time for all good"; |
| 99 | SkPaint paint; |
| 100 | paint.setColor(color); |
| 101 | canvas->drawString(text, 10, 20, font, paint); |
Mike Reed | c8bea7d | 2019-04-09 13:55:36 -0400 | [diff] [blame] | 102 | paint.setShader(SkShaders::Color(paint.getColor())); |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 103 | canvas->drawString(text, 10, 40, font, paint); |
| 104 | paint.setShader(shader); |
| 105 | canvas->drawString(text, 10, 60, font, paint); |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | class GammaShaderTextGM : public skiagm::GM { |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 109 | sk_sp<SkShader> fShaders[3]; |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 110 | SkColor fColors[3]; |
| 111 | |
| 112 | public: |
| 113 | GammaShaderTextGM() { |
| 114 | const SkColor colors[] = { SK_ColorBLACK, SK_ColorRED, SK_ColorBLUE }; |
| 115 | for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 116 | fColors[i] = colors[i]; |
| 117 | } |
| 118 | } |
| 119 | |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 120 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 121 | SkString onShortName() override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 122 | return SkString("gammagradienttext"); |
| 123 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 124 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 125 | SkISize onISize() override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 126 | return SkISize::Make(300, 300); |
| 127 | } |
| 128 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 129 | void onOnceBeforeDraw() override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 130 | for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) { |
| 131 | fShaders[i] = make_gradient(fColors[i]); |
| 132 | } |
| 133 | } |
| 134 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 135 | void onDraw(SkCanvas* canvas) override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 136 | SkPaint paint; |
Hal Canary | 5880791 | 2019-01-08 14:07:50 -0500 | [diff] [blame] | 137 | paint.setAntiAlias(true); |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 138 | SkFont font(SkTypeface::MakeFromName("serif", SkFontStyle::Italic()), 18); |
| 139 | font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 140 | |
| 141 | for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) { |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 142 | draw_pair(canvas, font, fColors[i], fShaders[i]); |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 143 | canvas->translate(0, 80); |
| 144 | } |
| 145 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 146 | |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 147 | private: |
| 148 | typedef skiagm::GM INHERITED; |
| 149 | }; |
| 150 | |
| 151 | DEF_GM( return new GammaShaderTextGM; ) |